1.1 --- a/src/pvr2/tacore.c	Sun Aug 06 07:47:26 2006 +0000
     1.2 +++ b/src/pvr2/tacore.c	Wed Jan 17 09:21:27 2007 +0000
     1.3 @@ -1,5 +1,5 @@
     1.4  /**
     1.5 - * $Id: tacore.c,v 1.8 2006-08-06 07:47:26 nkeynes Exp $
     1.6 + * $Id: tacore.c,v 1.9 2006-08-18 12:43:24 nkeynes Exp $
     1.7   *
     1.8   * PVR2 Tile Accelerator implementation
     1.9   *
    1.10 @@ -133,6 +133,7 @@
    1.11      int tilelist_dir; /* Growth direction of the tilelist, 0 = up, 1 = down */
    1.12      uint32_t tilelist_size; /* Size of the tilelist segments */
    1.13      uint32_t tilelist_start; /* Initial address of the tilelist */
    1.14 +    int polybuf_start; /* Initial bank address of the polygon buffer (ie &0x00F00000) */
    1.15      int current_vertex_type;
    1.16      gboolean accept_vertexes;
    1.17      int vertex_count; /* index of last start-vertex seen, or -1 if no vertexes 
    1.18 @@ -219,6 +220,7 @@
    1.19      }
    1.20      MMIO_WRITE( PVR2, TA_LISTPOS, plistpos );
    1.21      ta_status.tilelist_start = plistpos;
    1.22 +    ta_status.polybuf_start = MMIO_READ( PVR2, TA_POLYBASE ) & 0x00F00000;
    1.23  }
    1.24  
    1.25  static uint32_t parse_float_colour( float a, float r, float g, float b ) {
    1.26 @@ -349,7 +351,9 @@
    1.27  	    //	    ta_status.state = STATE_ERROR;
    1.28  	    break;
    1.29  	}
    1.30 -	*target++ = *data++;
    1.31 +	if( posn < PVR2_RAM_SIZE ) {
    1.32 +	    *target++ = *data++;
    1.33 +	}
    1.34  	posn += 4;
    1.35      }
    1.36  
    1.37 @@ -581,7 +585,8 @@
    1.38      }
    1.39  
    1.40      /* Ok, we're good to go - write out the polygon first */
    1.41 -    uint32_t tile_entry = MMIO_READ( PVR2, TA_POLYPOS ) >> 2 | ta_status.poly_pointer;
    1.42 +    uint32_t tile_entry = (MMIO_READ( PVR2, TA_POLYPOS ) - ta_status.polybuf_start) >> 2 | 
    1.43 +	ta_status.poly_pointer;
    1.44      
    1.45      int status = ta_write_polygon_buffer( poly_context, ta_status.poly_context_size );
    1.46      if( status == 0 ) {